Icahn told CNBC in an interview: “If I want people to know what I’m doing, I’ll go on Twitter and tell my followers.”

However, Icahn’s infatuation with the social media doesn’t extend to actually buying the stock. He told the network “I don’t own any shares of Twitter.” He indicated he likes Twitter because it makes it easy to distribute information.

Analysts haven’t been this downbeat on Apple since the first quarter of 2009.

According to data from FactSet, 72% of analysts following Apple rate it a buy or overweight. Another 25% rate it a hold, and 3% rate it a sell.

The last time the percentage of analysts rating the stock buy or overweight was this low was the first quarter of 2009, when a mere 70% of analysts surveyed by FactSet liked the stock. Apple shares then took a mostly one-way trip higher, skyrocketing by nearly 7 times to their record closing high set a year-ago Thursday at $702.10.

Shares traded as high as $73.91 earlier in the session and remained more than 3% higher in afternoon trading.

As Moneybeat noted, Tuesday’s high marks the stock’s return to levels it reached in April 2012, immediately prior to provocative questions from hedge fund manager David Einhorn, who was short the stock.

Bill Ackman’s quarterly letter to his investors starts off with a mea culpa. Rather than opening the letter with a laundry list of successes as fund managers are wont to do, he waxes poetic about how mistakes by a fund like Pershing Square is going to be more visible than those of lesser competitors.

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The Tell is MarketWatch’s fast and engaging look at trends and themes in the day’s markets. Drawing on our reporters, analysts and commentators around the world, as well as selecting the best of the rest online, The Tell is all about the pulse of the markets through news, insight and strategic information to help you make the best investing decisions. Got a tip? Tell us at TheTell@MarketWatch.com